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Your cart is empty.RACO One piece knockout seal is made of steel. It is used to close off unused openings in junction boxes or panelboards. The knockout seal provides installation integrity.
DAVID
Reviewed in the United States on February 15, 2025
Plug that knockout you shouldn’t have punched out.
Karl Lindheimer
Reviewed in the United States on January 23, 2025
Good knockout replacement cover helps you seal unused holes and make your boxes or panels compliant with the electrical codes.
Douglas LaCroix
Reviewed in the United States on September 17, 2024
They work exactly as intended. I was able to salvage a couple used boxes by installing the plugs. Worth the many. I keep some with me know when I'm on a job in case I knock out the wrong hole. Beats replacing the box.
Jeff Ef
Reviewed in the United States on July 15, 2024
They work but they are way too expensive for what they are.
James
Reviewed in the United States on May 11, 2023
Exactly as advertised. It fits like a glove with no slop. Very well made.
Alena M
Reviewed in the United States on December 4, 2023
Nice seal
Brian O'Donnell
Reviewed in the United States on March 13, 2022
as described
Arthur Davidson
Reviewed in the United States on May 10, 2021
These knockout plugs sold for 1/2" are too large for the hole of a 1/2" knockout. Although they are marked 1/2 the actually fit the more common 7/8" knockout hole. See photo.
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